Suction-pump.



J. FIALA.

SUCTION PUMP.

APPLICATION FILED Ama. I9I4.

Patented Nov. 23, 1915.

JLLSBS.

cOLuMBlA PLANOGRAPH co., WASHINGTUN. D. c.

` nected with the tracker bar 20.

parrain onirica.

JOSEPH FIALA, OF NEW YORK, N. Y., ASSIGNGB T0y STANDARD PNEUMATICIACTION COMPANY, OF NEW YORK, N. Y., A CORPORATON OF NEW YORK.

SUCTICN-PUMP.

Specification of Letters,]:"atent.`

Patented Nov.. 23, 1915.

Application led April S, 1914. Serial No. 83),342.

To all whom it may concern.'

'Be it known that I, JOSEPH FIALA, a citizen of the United States,residing at New York, in the county of New York and State of New York,have invented a new and useful Suction-Pump, of which the following is aspecification.

This invention relates to a suction pump and more specifically to adevice of this character particularly adapted for clearing the air tubesand tracker bar of a pneumatic player action.

It is the principal object of my invention to provide a suction pump ofthis type which is more convenient in use and more effective inoperation than the devices heretofore used for this purpose.

My invention accordingly consists in the provision of an improved devicefor guiding and alining the pump with the tracker bar and for preservingsuch alinement during the operation of the pump, togetherl with improveddetails of construction by which the pump is adapted to cooperate withthe tracker bar in a most convenient manner.

A preferred form of my invention is shown in the drawings in which-Figure 1 is a side view of a suction pump partially broken away to showthe interior construction; Fig. 2 is a plan view of the pump taken in aplane at right angles to that of Fig. 1; and Fig. 3 is a partial endelevation of the pump.

As shown in the drawings, the suction pump comprises a body member 10having an end portion 11 formed integral therewith and having a movablemember 12 connected to the end portion 11 by a hinge 13. rlhe portions10 and 12 are provided with operating handles 111-14 and the two partsare connected by the usual bellows member 15.

An opening 16 throughthe movable member is covered with a loose leatherflap 17, these parts forming a suction valve of the usual form. The endportion 11 is provided with a passage 18 which is elongated in crosssection as shown in Fig. 3.

As above stated, this suction pump is designed particularly for cleaningthe air tubes and tracker bar of a pneumatic player action. Certain ofthese air tubes are indicated at 19, the tubes being directly con- Thcfront face of the tracker bar is usually formed with a convex surface 21in order that the music sheet may be drawn easily thereover, coming inclose contact with the bar at the point at which the tubes 19 areconnected thereto.

ln order that the suction pump may lit closely over the tracker bar andmay cooperate therewith in a more effective manner than has beenheretofore attained, l form the outer end of the portion 11 with aconcave surface 22 corresponding in curvature to the face of the trackerbar. l also provide the portion 11 with a projecting lip 23 adapted torest upon the upper edge of the tracker bar. The lip 23 and the surface22 may be provided with a cushion covering 211 of rubber or felt.

1When the lip 23 rests upon the upper surface of the tracker bar 20, thepump will be supported in the relative position shown in Fig. 1, inwhich position the passage 18 is alined with the tubes 19 and the pumpcan most effectively operate to clear the tubes. At the same time, theconcave surface 22 fits closely over the convex surface of the trackerbar, making it easy to secure a good contact between the parts and toprevent the admission of air into the bellows except as it is drawnthrough the tubes 19.

Having thus described a preferred form of my. invention I do not wish tobe limited to the precise details herein disclosed, but

-What I claim is 1. A bellows forcleaning the tracker bar of a musicalinstrument comprising a body portion having an air passage through oneend thereof and having a handle fixed to the opposite end thereof, and amovable bellows leaf hinged to said body portion and having a handlefixed to the free end thereof, said body portion having a projecting lipadjacent the end of said air passage, said lip beingadapted to restagainst one side of the tracker bar and being effective to position theair passage of the bellows in hori- Zontal alinement with the openingsof the tracker bar as the bellows is moved longitudinally of said bar.

2. Abellows for cleaning pneumatic player actions having, incombination, a body portion with an air passage through one end thereof,and means for inducing air tension 2 Y Y Y 1,161,383

through said passage, the end of the body In testimony whereof I havehereunto set portion being provided with a projecting my hand, in thepresence of two subscribing 1G lip which isefeotive as a gage to alinethe witnesses.

air passage in the bellows with the holes in JOSEPH FIALA -2 the trackerbarof theaction to be cleaned,

said end also having a concave contacting Witnesses: surfacecorresponding substantially to the J. A. LE GATO, curvature of thetracker bar. A. W. JOHNSTON.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents,

^ Washington, D. C.

